45.This section sets out that references in Part 1 to high-risk, medium risk and low risk reservoirs are references to controlled reservoirs designated as such under sections 19, 21, 23 (subject to subsection (3) of that section) or 24 (subject to subsection (3) of that section). Subsection (2) sets out that Chapter 6 makes provision about the requirements related to high and medium risk reservoirs.